PIEZOELECTRIC VIBRATOR AND METHOD OF FABRICATING PIEZOELECTRIC VIBRATOR, AND OSCILLATOR, ELECTRONIC APPARATUS, AND RADIO WAVE TIMEPIECE HAVING PIEZOELECTRIC VIBRATOR

摘要

To achieve small-sized formation of a piezoelectric vibrator while preventing exciting electrodes provided at both faces of the piezoelectric vibrating piece from being shortcircuited to each other and enabling to fabricate the piezoelectric vibrating piece easily, there is provided a piezoelectric vibrator 1 including a case 3 in a shape of a bottomed cylinder having an opening portion 3 a and having a conductivity, a ring 12 substantially in a cylindrical shape press-fitted to the opening portion 3 a of the case 3 and having a conductivity, one piece of a lead 13 inserted to the ring 12 and having an inner lead portion 15 and an outer lead portion 16 , a filling member 14 having an insulting property for sealing an interval between the lead 13 and the ring 12 in airtight, and a piezoelectric vibrating piece 2 which is constituted by substantially a plate-like shape arranged at inside of the case 3 and includes exciting electrodes 8, 9 at both faces thereof and in which the exciting electrode 8 is supported by the inner lead portion 15 by being subjected to bump connection with the inner lead portion 15 of the lead 13 and the exciting electrode 9 is subjected to wire bonding with the ring 12.